[Zubersoft]

Here are all of the recognized field names:

pages
title
artists
albums
genres
composers
source types
sourcetypes
custom groups
customgroups
keys
signatures
custom
custom2
tempos
difficulty
duration
rating
years
sort title
sorttitle
audio files
audiofiles
pages
keywords
setlists
collections
page_order
source_types
custom_groups

There is no instrument field at the moment, but you can use custom group or source type for that.

You can't currently reimport CSV files to update existing songs in the library - that's on my list of things to do. You'll have to either delete songs and reimport, or manually update the songs. Be careful with importing a new version of a PDF that is shared by many songs, as a problem will be created if the page numbers no longer correctly line up. I am also planning on adding an option to not share a single PDF when using the CSV import feature and instead generating a PDF for each song that is selected.

Mike